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  1. Article

    Correction to: Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF

    Y. Ichikawa, Y. Shinohara, S. Go, H. Nishibata, S. Ando, K. Asahi, H. Baba in Interactions (2024)

  2. No Access

    Article

    Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF

    The magnetic dipole moment and the electric quadrupole moment are the nuclear moments that provide us with key information about the proton and neutron configurations in a nucleus and the shape of a nucleus, r...

    Y. Ichikawa, Y. Shinohara, S. Go, H. Nishibata, S. Ando, K. Asahi, H. Baba in Interactions (2024)

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    Article

    Interplay between nuclear shell evolution and shape deformation revealed by the magnetic moment of 75Cu

    Exotic nuclei are characterized by having a number of neutrons (or protons) in excess relative to stable nuclei. Their shell structure, which represents single-particle motion in a nucleus1,2, may vary due to nuc...

    Y. Ichikawa, H. Nishibata, Y. Tsunoda, A. Takamine, K. Imamura, T. Fujita in Nature Physics (2019)

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    Article

    Probing exotic phenomena at the interface of nuclear and particle physics with the electric dipole moments of diamagnetic atoms: A unique window to hadronic and semi-leptonic CP violation

    The current status of electric dipole moments of diamagnetic atoms which involves the synergy between atomic experiments and three different theoretical areas, i.e. particle, nuclear and atomic, is reviewed. Vari...

    N. Yamanaka, B. K. Sahoo, N. Yoshinaga, T. Sato in The European Physical Journal A (2017)

  5. No Access

    Chapter and Conference Paper

    Laser spectroscopy of atoms in superfluid helium for the measurement of nuclear spins and electromagnetic moments of radioactive atoms

    A new laser spectroscopic method named “OROCHI (Optical RI-atom Observation in Condensed Helium as Ion catcher)” has been developed for deriving the nuclear spins and electromagnetic moments of low-yield exoti...

    T. Fujita, T. Furukawa, K. Imamura, X. F. Yang, A. Hatakeyama, T. Kobayashi in TCP 2014 (2017)

  6. No Access

    Chapter and Conference Paper

    Performance assessment of a new laser system for efficient spin exchange optical pum** in a spin maser measurement of 129Xe EDM

    We demonstrate spin-exchange optical pum** of 129Xe atoms with our newly made laser system. The new laser system was prepared to provide higher laser power required for the stable operation of spin maser oscill...

    C. Funayama, T. Furukawa, T. Sato, Y. Ichikawa, Y. Ohtomo, Y. Sakamoto in TCP 2014 (2017)

  7. No Access

    Article

    Performance assessment of a new laser system for efficient spin exchange optical pum** in a spin maser measurement of 129Xe EDM

    We demonstrate spin-exchange optical pum** of 129Xe atoms with our newly made laser system. The new laser system was prepared to provide higher laser power required for the stable operation of spin maser oscill...

    C. Funayama, T. Furukawa, T. Sato, Y. Ichikawa, Y. Ohtomo in Hyperfine Interactions (2015)

  8. No Access

    Article

    Laser spectroscopy of atoms in superfluid helium for the measurement of nuclear spins and electromagnetic moments of radioactive atoms

    A new laser spectroscopic method named “OROCHI (Optical RI-atom Observation in Condensed Helium as Ion catcher)” has been developed for deriving the nuclear spins and electromagnetic moments of low-yield exoti...

    T. Fujita, T. Furukawa, K. Imamura, X. F. Yang, A. Hatakeyama in Hyperfine Interactions (2015)

  9. Article

    Open Access

    Experimental search for the electron electric dipole moment with laser cooled francium atoms

    A laser cooled heavy atom is one of the candidates to search for the permanent electric dipole moment (EDM) of the electron due to the enhancement mechanism and its long coherence time. The laser cooled franci...

    T. Inoue, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada in Hyperfine Interactions (2015)

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    Article

    EDM measurement in 129Xe atom using dual active feedback nuclear spin maser

    The technique of an active nuclear spin maser is adopted in the search for electric dipole moment in a diamagnetic atom 129Xe. In order to reduce systematic uncertainties arising from long-term drifts of the exte...

    T. Sato, Y. Ichikawa, Y. Ohtomo, Y. Sakamoto, S. Kojima in Hyperfine Interactions (2015)

  11. No Access

    Article

    Development of high-homogeneity magnetic field coil for 129Xe EDM experiment

    We search for 129Xe EDM by using an active nuclear spin maser. In this experiment, the amplitude of the maser oscillation signal is one of the most important parameters that eventually determine the frequency pre...

    Y. Sakamoto, C. P. Bidinosti, Y. Ichikawa, T. Sato, Y. Ohtomo in Hyperfine Interactions (2015)

  12. No Access

    Chapter and Conference Paper

    Vulnerability evaluation of multiplexing PUF for SVM attacks

    Recently, semiconductor counterfeiting has become serious problems due to the advancement of reverse engineering technologies. The physical unclonable function (PUF) is now attracting attention as a technique ...

    S. Kiryu, K. Asahi, M. Yoshikawa in Progress in Systems Engineering (2015)

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    Article

    Search for electric dipole moment in 129Xe atom using a nuclear spin oscillator

    We aim to measure the electric dipole moment (EDM) of a diamagnetic atom 129Xe using an optical-detection nuclear spin maser technique. The relation of EDM in a diamagnetic atom to nuclear Schiff moment and funda...

    K. Asahi, Y. Ichikawa, M. Chikamori, Y. Ohtomo in Physics of Particles and Nuclei (2014)

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    Article

    Nuclear spin maser and experimental search for 129 Xe atomic EDM

    The present status of an active spin maser which is being developed for an experimental search for 129Xe atomic electric dipole moment (EDM) is presented. In order to realize the long term stability of maser freq...

    T. Inoue, T. Furukawa, A. Yoshimi, Y. Ichikawa, M. Chikamori in Hyperfine Interactions (2013)

  15. No Access

    Article

    Creation of polarized ultracold neutrons and observation of Ramsey resonance for electric dipole moment measurement

    Polarized UCNs have been created by selecting only one spin state passing through a magnetized Fe foil. Typical degree of polarization was about 90 %. The polarization relaxation time in the prototype Ramsey c...

    K. Matsuta, Y. Masuda, K. Hatanaka, S. C. Jeong, S. Kawasaki in Hyperfine Interactions (2013)

  16. No Access

    Article

    Novel method for the production of spin-aligned RI beams in projectile fragmentation reaction with the dispersion matching technique

    A novel method to produce spin-aligned rare-isotope (RI) beam has been developed, that is the two-step projectile fragmentation method with a technique of dispersion matching. The present method was verified i...

    Y. Ichikawa, H. Ueno, Y. Ishii, T. Furukawa, A. Yoshimi in Hyperfine Interactions (2013)

  17. No Access

    Article

    Precise nuclear moments of extremely proton-rich nuclus 23 Al

    Electric quadrupole coupling constant eqQ/h of the extremely proton-rich 23Al (I π  = 5/2 + , T 1/2 = 0.47 s) nucleus implanted i...

    T. Nagatomo, H. Ueno, M. Mihara, K. Matsuta, A. Yoshimi in Hyperfine Interactions (2010)

  18. No Access

    Article

    Beta-NMR measurement of 58Cu in Si

    The β-NMR study of short-lived nucleus 58Cu (I π  = 1 + , T 1/2 = 3.2 s) in Si has been performed. Spin polarization of 58Cu indu...

    M. Mihara, T. Izumikawa, H. Ueno, K. Matsuta, D. Nishimura in Hyperfine Interactions (2010)

  19. No Access

    Article

    Observation of iron impurity diffusion in silicon under bending stress by Mössbauer spectroscopy

    External bending stress was applied to a 57Fe-doped n-type silicon wafer, and transmission Mössbauer spectra were measured at room temperature in order to observe directly stress induced diffusion of 57Fe atoms i...

    K. Suzuki, Y. Yoshida, K. Hayakawa, K. Yukihira, M. Ichino in Hyperfine Interactions (2010)

  20. No Access

    Article

    Electric quadrupole moment of the neutron-rich 33Al

    The nuclear electric quadrupole moment (Q moment) of the neutron-rich nucleus 33Al (I = 5/2 , T 1/2 = 41 ms) has been measured by the ...

    T. Nagatomo, K. Shimada, K. Asahi, D. L. Balabanski in The European Physical Journal A (2009)

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